In SOLIDWORKS, using a multibody part instead of an assembly can be beneficial in specific circumstances, such as increased performance over assemblies, bulk configuration creation, and sheet metal/weldment work. Multibody parts are especially useful when you have a bill of materials but no moving parts. If there are no kinematics to evaluate, the “assembly” can remain a multibody part.
When removing sketch entities in SOLIDWORKS, deleting a specific portion can require extensive cleanup and adding additional sketch entities. However, the Trim Entities command will automate a lot of the busy work and allow you to trim or extend entities in your sketch in one single operation. This article explains, in-depth, uses of the SOLIDWORKS Trim Entities command and provides an overview of all the different selection options.